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pullout in fabric model in abaqus

Submitted by jagan on

hi,

 I am trying to model pullout behaviour in abaqus. i generated my 3d model with the help of texgen and i am applying velocity b.c.s to simulate pullout. I am expecting that NFORC beneath the point of applying velocity will give the pullout load. am i correct?. If not, wat will fetch my query?

if my sum up the reactions at the boundary i may not get the pullout load becoz of the frictional force between the fabric interface. 

ABAQUS model of polycrystal plasticity

Submitted by lu_1989 on

Hi everyone 

I am learning the polycrystalline crystal plasticity and testing material in ABAQUS and UMAT. Now I am trying to build a RVE by using the truncated octahedrons as the grain shape or Voronoi tessellations.

For truncated octahedrons, I built a truncated octahedrons and assembled them into the grain aggregate in the .inp file, and assign orientations in the UMAT based on the part's name. However, I found it hard to define their interaction between grains. What is their interaction properties and how to define the contact pair in an automatic way?

Non-linear multiphysics modeling of ionic gels

Submitted by Alessandro Luc… on

The paper presents a thermodynamically consistent modeling of the non-linear multiphysics of ionic polymer gels based on the multiplicative decomposition of the deformation gradient. In particular, the deformations induced by the motion of ions under an applied voltage are viewed as distortions, similarly to growth-induced deformations in soft tissues. Furthermore, a consistent linearization of the model in the regime of small deformations is discussed. Finally, a finite element implementation of the theory is introduced and validated against experimental results.

New impact factor of Acta Mechanica Solida Sinica (AMSS): 1.330

Submitted by C Amss on

   The new impact factor of Acta Mechanica Solida Sinica (AMSS) is 1.330, as revealed in the 2012 Journal Citation Reports published by Thomson Reuters. This is the third consecutive increase in Impact Factor of the journal.

Nonconservative Stability Problems of Modern Physics

Submitted by Oleg Kirillov on

This monograph gives a complete overview on the subject of nonconservative stability from the modern point of view. Relevant mathematical concepts are presented, as well as rigorous stability results and numerous classical and contemporary examples from mechanics and physics.